Improvement in revolving fire-arms



S. S HOPKINS Revolving Fire-Arm.

No 113,053. Patented March 28, 1871.

N. PETERS, PMOTO-LAYHOGRAPHER, WASHINGTON, n O,

all that is necessary to a full understanding UNITED STATES PATENT OFFICE.

.SAMUEL HOPKINS, OF NORWICH, CONNECTICUT, ASSIGN OR TO :THE HOPKINS & ALLEN MANUFACTURING COMPANY, OF SAME PLACE.

IMPROVEMENT IN REVOLVING FIRE-ARMS.

Specification forming part of Letters Patent No. 113,053, dated March 28, 1871.

To all whom it may concern.-

not be disengaged from the frame; but it can, in this case, be swung laterally on the pivot c, to protrude partly beyond the side of the frame, as in Fig. 3, and permit ready access to its useful Improvement in Revolving Fire-Arms; and I do hereby declare that the following is a full, clear, and exact description thereof, which use the same, reference being had to the accompanyin g drawing, forming part of this specification.

Figure 1 represents a side view, partly in section, of my improved fire-arm. Fig. 2 is a detail inverted plan view of the cylinder-frame. Fig. 3 is afront-end view of the fire-arm. Fig. 4 is a detail side view of the base-pin and pivot.

ig. 5 is a detail side view of the swinging link which holds the cylinder. Fig. 6 is a detail edge view of the same.

Similar letters of reference indicate corresponding parts.

y invention relates to revolving fire-arms, and will be first described in connection with I have arranged a spring-catch, g, on the side of the frame, between the links I) and e. The said catch is, by its spring, held in contact with the base-pin, and looks into anotch, h, of the same when in the desired position.

the frame and locked with their narrow points into the pins, thereby giving a less firm hold and producing more friction during motion.

oreover, by being at the side, the catch is in a better position for manipulating the swingin g cylinder and base-pin by the fingers of the left hand.

The base-pin is, as above stated, made to slide in the tube d, bar a, and link e; but the latter has a projecting stop, t, entering a longitudinal groove, j, of the base pin, or an equivalent device, which prevents the said pin from being entirely with drawn from the link 0.

thereof, and then clearly pointed out in the claims.

Against the inner face of the front bar, a, of the frame B is placed a swinging plate orlink, b, which is pivoted at its lower end by a pin, C,

the base-pin is withdrawn from it, as well as from the link b and bar a, as in Fig. 1, but remains in the link 6, and can be swung on the same into line with the chambers of the cylinder to clean the same.

Suitable stops may be provided on the link e or frame to arrest the link in its two posiequal in diameter with the opening through the tube cl, as is also shown in Fig. 1.

E is the base-pin. It is fitted through the front bar, a, and through a link, 0, pivoted to the face of the same, and is in line with the axis of the cylinder D and tube 01 when the arm is in a firing position. In this position the base-pin can be pushed through the tube d and cylinder D into a socket provided in the recoil-shield), said socket being indicated by dotted lines in Fig. 1. The cylinder, during the process of firing, will thus revolve on and be in part supported by the base-pin, but also by the tube (1, being thus securely held cannot become lost, and has still all the motions of a loose pin. So, also, the cylinder, being always sustained on the tube, cannot be detached and lost, and is as easily loaded and cleaned as one detachable.

he improvement in the arrangement of the spring-catch above described is also applicable to other revolving fire-arms not containing 2. The spring-catch g, arranged at the side the remaining features of this invention, and of the frame, for locking into the sliding basevice versa. pin of the fire-arm, substantially as herein Having thus described my invention, 1 shown and described.

claim as new and desire to secure by Letters Patent- SAMUEL S. HOPKINS.

1. The combination of the swinging link e andlongitudinally-adjustablebase-pin with the Witnesses:

pivoted link 1), tube d, and cylinder D, all ar- A. T. CONVERSE,

ranged to operate substantially as herein G. D. LESTER.

shown and described. 

